#include <iostream>

using namespace std;

class Student{

public:
	char *name;
	// 初始化默认值
	int age = 100;

public:
	void change()
	{
		age += 10;	
	}

};

int main()
{

	Student stu;
	stu.change();
	
	cout << "age:" << stu.age << endl;

	return 0;
}
